diff options
Diffstat (limited to 'Modules/CMakeDetermineCompilerId.cmake')
| -rw-r--r-- | Modules/CMakeDetermineCompilerId.cmake | 647 |
1 files changed, 647 insertions, 0 deletions
diff --git a/Modules/CMakeDetermineCompilerId.cmake b/Modules/CMakeDetermineCompilerId.cmake new file mode 100644 index 0000000..c699315 --- /dev/null +++ b/Modules/CMakeDetermineCompilerId.cmake @@ -0,0 +1,647 @@ + +#============================================================================= +# Copyright 2007-2009 Kitware, Inc. +# +# Distributed under the OSI-approved BSD License (the "License"); +# see accompanying file Copyright.txt for details. +# +# This software is distributed WITHOUT ANY WARRANTY; without even the +# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# See the License for more information. +#============================================================================= +# (To distribute this file outside of CMake, substitute the full +# License text for the above reference.) + +# Function to compile a source file to identify the compiler. This is +# used internally by CMake and should not be included by user code. +# If successful, sets CMAKE_<lang>_COMPILER_ID and CMAKE_<lang>_PLATFORM_ID + +function(CMAKE_DETERMINE_COMPILER_ID lang flagvar src) + # Make sure the compiler arguments are clean. + string(STRIP "${CMAKE_${lang}_COMPILER_ARG1}" CMAKE_${lang}_COMPILER_ID_ARG1) + string(REGEX REPLACE " +" ";" CMAKE_${lang}_COMPILER_ID_ARG1 "${CMAKE_${lang}_COMPILER_ID_ARG1}") + + # Make sure user-specified compiler flags are used. + if(CMAKE_${lang}_FLAGS) + set(CMAKE_${lang}_COMPILER_ID_FLAGS ${CMAKE_${lang}_FLAGS}) + else() + set(CMAKE_${lang}_COMPILER_ID_FLAGS $ENV{${flagvar}}) + endif() + string(REPLACE " " ";" CMAKE_${lang}_COMPILER_ID_FLAGS_LIST "${CMAKE_${lang}_COMPILER_ID_FLAGS}") + + # Compute the directory in which to run the test. + set(CMAKE_${lang}_COMPILER_ID_DIR ${CMAKE_PLATFORM_INFO_DIR}/CompilerId${lang}) + + # Try building with no extra flags and then try each set + # of helper flags. Stop when the compiler is identified. + foreach(flags ${CMAKE_${lang}_COMPILER_ID_TEST_FLAGS_FIRST} + "" + ${CMAKE_${lang}_COMPILER_ID_TEST_FLAGS}) + CMAKE_DETERMINE_COMPILER_ID_BUILD("${lang}" "${flags}" "${src}") + CMAKE_DETERMINE_COMPILER_ID_MATCH_VENDOR("${lang}" "${COMPILER_${lang}_PRODUCED_OUTPUT}") + if(CMAKE_${lang}_COMPILER_ID) + break() + endif() + foreach(file ${COMPILER_${lang}_PRODUCED_FILES}) + CMAKE_DETERMINE_COMPILER_ID_CHECK("${lang}" "${CMAKE_${lang}_COMPILER_ID_DIR}/${file}" "${src}") + endforeach() + if(CMAKE_${lang}_COMPILER_ID) + break() + endif() + endforeach() + + # If the compiler is still unknown, try to query its vendor. + if(CMAKE_${lang}_COMPILER AND NOT CMAKE_${lang}_COMPILER_ID) + CMAKE_DETERMINE_COMPILER_ID_VENDOR(${lang}) + endif() + + if (COMPILER_QNXNTO AND CMAKE_${lang}_COMPILER_ID STREQUAL "GNU") + execute_process( + COMMAND "${CMAKE_${lang}_COMPILER}" + -V + OUTPUT_VARIABLE output ERROR_VARIABLE output + RESULT_VARIABLE result + TIMEOUT 10 + ) + if (output MATCHES "targets available") + set(CMAKE_${lang}_COMPILER_ID QCC) + # http://community.qnx.com/sf/discussion/do/listPosts/projects.community/discussion.qnx_momentics_community_support.topc3555?_pagenum=2 + # The qcc driver does not itself have a version. + endif() + endif() + + # if the format is unknown after all files have been checked, put "Unknown" in the cache + if(NOT CMAKE_EXECUTABLE_FORMAT) + set(CMAKE_EXECUTABLE_FORMAT "Unknown" CACHE INTERNAL "Executable file format") + endif() + + # Display the final identification result. + if(CMAKE_${lang}_COMPILER_ID) + if(CMAKE_${lang}_COMPILER_VERSION) + set(_version " ${CMAKE_${lang}_COMPILER_VERSION}") + else() + set(_version "") + endif() + message(STATUS "The ${lang} compiler identification is " + "${CMAKE_${lang}_COMPILER_ID}${_version}") + else() + message(STATUS "The ${lang} compiler identification is unknown") + endif() + + # Check if compiler id detection gave us the compiler tool. + if(CMAKE_${lang}_COMPILER_ID_TOOL) + set(CMAKE_${lang}_COMPILER "${CMAKE_${lang}_COMPILER_ID_TOOL}" PARENT_SCOPE) + elseif(NOT CMAKE_${lang}_COMPILER) + set(CMAKE_${lang}_COMPILER "CMAKE_${lang}_COMPILER-NOTFOUND" PARENT_SCOPE) + endif() + + set(CMAKE_${lang}_COMPILER_ID "${CMAKE_${lang}_COMPILER_ID}" PARENT_SCOPE) + set(CMAKE_${lang}_PLATFORM_ID "${CMAKE_${lang}_PLATFORM_ID}" PARENT_SCOPE) + set(MSVC_${lang}_ARCHITECTURE_ID "${MSVC_${lang}_ARCHITECTURE_ID}" + PARENT_SCOPE) + set(CMAKE_${lang}_COMPILER_VERSION "${CMAKE_${lang}_COMPILER_VERSION}" PARENT_SCOPE) + set(CMAKE_${lang}_SIMULATE_ID "${CMAKE_${lang}_SIMULATE_ID}" PARENT_SCOPE) + set(CMAKE_${lang}_SIMULATE_VERSION "${CMAKE_${lang}_SIMULATE_VERSION}" PARENT_SCOPE) +endfunction() + +include(CMakeCompilerIdDetection) + +#----------------------------------------------------------------------------- +# Function to write the compiler id source file. +function(CMAKE_DETERMINE_COMPILER_ID_WRITE lang src) + find_file(src_in ${src}.in PATHS ${CMAKE_ROOT}/Modules ${CMAKE_MODULE_PATH} NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH) + file(READ ${src_in} ID_CONTENT_IN) + + compiler_id_detection(CMAKE_${lang}_COMPILER_ID_CONTENT ${lang} + ID_STRING + VERSION_STRINGS + PLATFORM_DEFAULT_COMPILER + ) + + unset(src_in CACHE) + string(CONFIGURE "${ID_CONTENT_IN}" ID_CONTENT_OUT @ONLY) + file(WRITE ${CMAKE_${lang}_COMPILER_ID_DIR}/${src} "${ID_CONTENT_OUT}") +endfunction() + +#----------------------------------------------------------------------------- +# Function to build the compiler id source file and look for output +# files. +function(CMAKE_DETERMINE_COMPILER_ID_BUILD lang testflags src) + # Create a clean working directory. + file(REMOVE_RECURSE ${CMAKE_${lang}_COMPILER_ID_DIR}) + file(MAKE_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}) + CMAKE_DETERMINE_COMPILER_ID_WRITE("${lang}" "${src}") + + # Construct a description of this test case. + set(COMPILER_DESCRIPTION + "Compiler: ${CMAKE_${lang}_COMPILER} ${CMAKE_${lang}_COMPILER_ID_ARG1} +Build flags: ${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST} +Id flags: ${testflags} +") + + # Compile the compiler identification source. + if(CMAKE_GENERATOR STREQUAL "Visual Studio 6" AND + lang STREQUAL "Fortran") + set(CMAKE_${lang}_COMPILER_ID_RESULT 1) + set(CMAKE_${lang}_COMPILER_ID_OUTPUT "No Intel Fortran in VS 6") + elseif("${CMAKE_GENERATOR}" MATCHES "Visual Studio ([0-9]+)") + set(vs_version ${CMAKE_MATCH_1}) + set(id_platform ${CMAKE_VS_PLATFORM_NAME}) + set(id_lang "${lang}") + set(id_cl cl.exe) + if(CMAKE_VS_PLATFORM_NAME STREQUAL "Tegra-Android") + set(v NsightTegra) + set(ext vcxproj) + if(lang STREQUAL CXX) + set(id_gcc g++) + set(id_clang clang++) + else() + set(id_gcc gcc) + set(id_clang clang) + endif() + elseif(lang STREQUAL Fortran) + set(v Intel) + set(ext vfproj) + set(id_cl ifort.exe) + elseif(NOT "${vs_version}" VERSION_LESS 10) + set(v 10) + set(ext vcxproj) + elseif(NOT "${vs_version}" VERSION_LESS 7) + set(id_version ${vs_version}.00) + set(v 7) + set(ext vcproj) + else() + set(v 6) + set(ext dsp) + endif() + if("${id_platform}" STREQUAL "Itanium") + set(id_platform ia64) + endif() + if(CMAKE_VS_PLATFORM_TOOLSET) + if(CMAKE_VS_PLATFORM_NAME STREQUAL "Tegra-Android") + set(id_toolset "<NdkToolchainVersion>${CMAKE_VS_PLATFORM_TOOLSET}</NdkToolchainVersion>") + else() + set(id_toolset "<PlatformToolset>${CMAKE_VS_PLATFORM_TOOLSET}</PlatformToolset>") + if(CMAKE_VS_PLATFORM_TOOLSET MATCHES "Intel") + set(id_cl icl.exe) + endif() + endif() + else() + set(id_toolset "") + endif() + if(CMAKE_SYSTEM_NAME STREQUAL "WindowsPhone") + set(id_system "<ApplicationType>Windows Phone</ApplicationType>") + elseif(CMAKE_SYSTEM_NAME STREQUAL "WindowsStore") + set(id_system "<ApplicationType>Windows Store</ApplicationType>") + else() + set(id_system "") + endif() + if(id_system AND CMAKE_SYSTEM_VERSION) + set(id_system_version "<ApplicationTypeRevision>${CMAKE_SYSTEM_VERSION}</ApplicationTypeRevision>") + else() + set(id_system_version "") + endif() + if(id_platform STREQUAL ARM) + set(id_WindowsSDKDesktopARMSupport "<WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>") + else() + set(id_WindowsSDKDesktopARMSupport "") + endif() + if(CMAKE_VS_WINCE_VERSION) + set(id_entrypoint "mainACRTStartup") + if("${vs_version}" VERSION_LESS 9) + set(id_subsystem 9) + else() + set(id_subsystem 8) + endif() + else() + set(id_subsystem 1) + endif() + set(id_dir ${CMAKE_${lang}_COMPILER_ID_DIR}) + set(id_src "${src}") + configure_file(${CMAKE_ROOT}/Modules/CompilerId/VS-${v}.${ext}.in + ${id_dir}/CompilerId${lang}.${ext} @ONLY) + if(CMAKE_VS_MSBUILD_COMMAND AND NOT lang STREQUAL "Fortran") + set(command "${CMAKE_VS_MSBUILD_COMMAND}" "CompilerId${lang}.${ext}" + "/p:Configuration=Debug" "/p:Platform=${id_platform}" "/p:VisualStudioVersion=${vs_version}.0" + ) + elseif(CMAKE_VS_DEVENV_COMMAND) + set(command "${CMAKE_VS_DEVENV_COMMAND}" "CompilerId${lang}.${ext}" "/build" "Debug") + elseif(CMAKE_VS_MSDEV_COMMAND) + set(command "${CMAKE_VS_MSDEV_COMMAND}" "CompilerId${lang}.${ext}" "/make") + else() + set(command "") + endif() + if(command) + execute_process( + COMMAND ${command} + WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR} + OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT + ERROR_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT + RESULT_VARIABLE CMAKE_${lang}_COMPILER_ID_RESULT + ) + else() + set(CMAKE_${lang}_COMPILER_ID_RESULT 1) + set(CMAKE_${lang}_COMPILER_ID_OUTPUT "VS environment not known to support ${lang}") + endif() + # Match the compiler location line printed out. + if("${CMAKE_${lang}_COMPILER_ID_OUTPUT}" MATCHES "CMAKE_${lang}_COMPILER=([^%\r\n]+)[\r\n]") + # Strip VS diagnostic output from the end of the line. + string(REGEX REPLACE " \\(TaskId:[0-9]*\\)$" "" _comp "${CMAKE_MATCH_1}") + if(EXISTS "${_comp}") + file(TO_CMAKE_PATH "${_comp}" _comp) + set(CMAKE_${lang}_COMPILER_ID_TOOL "${_comp}" PARENT_SCOPE) + endif() + endif() + elseif("${CMAKE_GENERATOR}" MATCHES "Xcode") + set(id_lang "${lang}") + set(id_type ${CMAKE_${lang}_COMPILER_XCODE_TYPE}) + set(id_dir ${CMAKE_${lang}_COMPILER_ID_DIR}) + set(id_src "${src}") + if(CMAKE_XCODE_PLATFORM_TOOLSET) + set(id_toolset "GCC_VERSION = ${CMAKE_XCODE_PLATFORM_TOOLSET};") + else() + set(id_toolset "") + endif() + if(CMAKE_OSX_DEPLOYMENT_TARGET) + set(id_deployment_target + "MACOSX_DEPLOYMENT_TARGET = \"${CMAKE_OSX_DEPLOYMENT_TARGET}\";") + else() + set(id_deployment_target "") + endif() + set(id_product_type "com.apple.product-type.tool") + if(CMAKE_OSX_SYSROOT) + set(id_sdkroot "SDKROOT = \"${CMAKE_OSX_SYSROOT}\";") + if(CMAKE_OSX_SYSROOT MATCHES "(^|/)[Ii][Pp][Hh][Oo][Nn][Ee]") + set(id_product_type "com.apple.product-type.bundle.unit-test") + endif() + else() + set(id_sdkroot "") + endif() + if(NOT ${XCODE_VERSION} VERSION_LESS 3) + set(v 3) + set(ext xcodeproj) + elseif(NOT ${XCODE_VERSION} VERSION_LESS 2) + set(v 2) + set(ext xcodeproj) + else() + set(v 1) + set(ext xcode) + endif() + configure_file(${CMAKE_ROOT}/Modules/CompilerId/Xcode-${v}.pbxproj.in + ${id_dir}/CompilerId${lang}.${ext}/project.pbxproj @ONLY) + unset(_ENV_MACOSX_DEPLOYMENT_TARGET) + if(DEFINED ENV{MACOSX_DEPLOYMENT_TARGET}) + set(_ENV_MACOSX_DEPLOYMENT_TARGET "$ENV{MACOSX_DEPLOYMENT_TARGET}") + set(ENV{MACOSX_DEPLOYMENT_TARGET} "") + endif() + execute_process(COMMAND xcodebuild + WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR} + OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT + ERROR_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT + RESULT_VARIABLE CMAKE_${lang}_COMPILER_ID_RESULT + ) + if(DEFINED _ENV_MACOSX_DEPLOYMENT_TARGET) + set(ENV{MACOSX_DEPLOYMENT_TARGET} "${_ENV_MACOSX_DEPLOYMENT_TARGET}") + endif() + + if(DEFINED CMAKE_${lang}_COMPILER_ID_TOOL_MATCH_REGEX) + if("${CMAKE_${lang}_COMPILER_ID_OUTPUT}" MATCHES "${CMAKE_${lang}_COMPILER_ID_TOOL_MATCH_REGEX}") + set(_comp "${CMAKE_MATCH_${CMAKE_${lang}_COMPILER_ID_TOOL_MATCH_INDEX}}") + if(EXISTS "${_comp}") + set(CMAKE_${lang}_COMPILER_ID_TOOL "${_comp}" PARENT_SCOPE) + endif() + endif() + endif() + else() + if(COMMAND EXECUTE_PROCESS) + execute_process( + COMMAND "${CMAKE_${lang}_COMPILER}" + ${CMAKE_${lang}_COMPILER_ID_ARG1} + ${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST} + ${testflags} + "${src}" + WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR} + OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT + ERROR_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT + RESULT_VARIABLE CMAKE_${lang}_COMPILER_ID_RESULT + ) + else() + exec_program( + "${CMAKE_${lang}_COMPILER}" ${CMAKE_${lang}_COMPILER_ID_DIR} + ARGS ${CMAKE_${lang}_COMPILER_ID_ARG1} + ${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST} + ${testflags} + \"${src}\" + OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT + RETURN_VALUE CMAKE_${lang}_COMPILER_ID_RESULT + ) + endif() + endif() + + # Check the result of compilation. + if(CMAKE_${lang}_COMPILER_ID_RESULT + # Intel Fortran warns and ignores preprocessor lines without /fpp + OR CMAKE_${lang}_COMPILER_ID_OUTPUT MATCHES "Bad # preprocessor line" + ) + # Compilation failed. + set(MSG + "Compiling the ${lang} compiler identification source file \"${src}\" failed. +${COMPILER_DESCRIPTION} +The output was: +${CMAKE_${lang}_COMPILER_ID_RESULT} +${CMAKE_${lang}_COMPILER_ID_OUTPUT} + +") + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log "${MSG}") + #if(NOT CMAKE_${lang}_COMPILER_ID_ALLOW_FAIL) + # message(FATAL_ERROR "${MSG}") + #endif() + + # No output files should be inspected. + set(COMPILER_${lang}_PRODUCED_FILES) + set(COMPILER_${lang}_PRODUCED_OUTPUT) + else() + # Compilation succeeded. + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log + "Compiling the ${lang} compiler identification source file \"${src}\" succeeded. +${COMPILER_DESCRIPTION} +The output was: +${CMAKE_${lang}_COMPILER_ID_RESULT} +${CMAKE_${lang}_COMPILER_ID_OUTPUT} + +") + + # Find the executable produced by the compiler, try all files in the + # binary dir. + file(GLOB files + RELATIVE ${CMAKE_${lang}_COMPILER_ID_DIR} + + # normal case + ${CMAKE_${lang}_COMPILER_ID_DIR}/* + + # com.apple.package-type.bundle.unit-test + ${CMAKE_${lang}_COMPILER_ID_DIR}/*.xctest/* + ) + list(REMOVE_ITEM files "${src}") + set(COMPILER_${lang}_PRODUCED_FILES "") + foreach(file ${files}) + if(NOT IS_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}/${file}) + list(APPEND COMPILER_${lang}_PRODUCED_FILES ${file}) + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log + "Compilation of the ${lang} compiler identification source \"" + "${src}\" produced \"${file}\"\n\n") + endif() + endforeach() + + if(NOT COMPILER_${lang}_PRODUCED_FILES) + # No executable was found. + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log + "Compilation of the ${lang} compiler identification source \"" + "${src}\" did not produce an executable in \"" + "${CMAKE_${lang}_COMPILER_ID_DIR}\".\n\n") + endif() + + set(COMPILER_${lang}_PRODUCED_OUTPUT "${CMAKE_${lang}_COMPILER_ID_OUTPUT}") + endif() + + # Return the files produced by the compilation. + set(COMPILER_${lang}_PRODUCED_FILES "${COMPILER_${lang}_PRODUCED_FILES}" PARENT_SCOPE) + set(COMPILER_${lang}_PRODUCED_OUTPUT "${COMPILER_${lang}_PRODUCED_OUTPUT}" PARENT_SCOPE) +endfunction() + +#----------------------------------------------------------------------------- +# Function to extract the compiler id from compiler output. +function(CMAKE_DETERMINE_COMPILER_ID_MATCH_VENDOR lang output) + foreach(vendor ${CMAKE_${lang}_COMPILER_ID_MATCH_VENDORS}) + if(output MATCHES "${CMAKE_${lang}_COMPILER_ID_MATCH_VENDOR_REGEX_${vendor}}") + set(CMAKE_${lang}_COMPILER_ID "${vendor}") + endif() + endforeach() + set(CMAKE_${lang}_COMPILER_ID "${CMAKE_${lang}_COMPILER_ID}" PARENT_SCOPE) +endfunction() + +#----------------------------------------------------------------------------- +# Function to extract the compiler id from an executable. +function(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file) + # Look for a compiler id if not yet known. + if(NOT CMAKE_${lang}_COMPILER_ID) + # Read the compiler identification string from the executable file. + set(COMPILER_ID) + set(COMPILER_VERSION) + set(COMPILER_VERSION_MAJOR 0) + set(COMPILER_VERSION_MINOR 0) + set(COMPILER_VERSION_PATCH 0) + set(COMPILER_VERSION_TWEAK 0) + set(HAVE_COMPILER_VERSION_MAJOR 0) + set(HAVE_COMPILER_VERSION_MINOR 0) + set(HAVE_COMPILER_VERSION_PATCH 0) + set(HAVE_COMPILER_VERSION_TWEAK 0) + set(DIGIT_VALUE_1 1) + set(DIGIT_VALUE_2 10) + set(DIGIT_VALUE_3 100) + set(DIGIT_VALUE_4 1000) + set(DIGIT_VALUE_5 10000) + set(DIGIT_VALUE_6 100000) + set(DIGIT_VALUE_7 1000000) + set(DIGIT_VALUE_8 10000000) + set(PLATFORM_ID) + set(ARCHITECTURE_ID) + set(SIMULATE_ID) + set(SIMULATE_VERSION) + file(STRINGS ${file} + CMAKE_${lang}_COMPILER_ID_STRINGS LIMIT_COUNT 38 REGEX "INFO:[A-Za-z0-9_]+\\[[^]]*\\]") + set(COMPILER_ID_TWICE) + foreach(info ${CMAKE_${lang}_COMPILER_ID_STRINGS}) + if("${info}" MATCHES "INFO:compiler\\[([^]\"]*)\\]") + if(COMPILER_ID) + set(COMPILER_ID_TWICE 1) + endif() + set(COMPILER_ID "${CMAKE_MATCH_1}") + endif() + if("${info}" MATCHES "INFO:platform\\[([^]\"]*)\\]") + set(PLATFORM_ID "${CMAKE_MATCH_1}") + endif() + if("${info}" MATCHES "INFO:arch\\[([^]\"]*)\\]") + set(ARCHITECTURE_ID "${CMAKE_MATCH_1}") + endif() + if("${info}" MATCHES "INFO:compiler_version\\[([^]\"]*)\\]") + string(REGEX REPLACE "^0+([0-9])" "\\1" COMPILER_VERSION "${CMAKE_MATCH_1}") + string(REGEX REPLACE "\\.0+([0-9])" ".\\1" COMPILER_VERSION "${COMPILER_VERSION}") + endif() + foreach(comp MAJOR MINOR PATCH TWEAK) + foreach(digit 1 2 3 4 5 6 7 8 9) + if("${info}" MATCHES "INFO:compiler_version_${comp}_digit_${digit}\\[([0-9])\\]") + set(value ${CMAKE_MATCH_1}) + math(EXPR COMPILER_VERSION_${comp} "${COMPILER_VERSION_${comp}} + ${value} * ${DIGIT_VALUE_${digit}}") + set(HAVE_COMPILER_VERSION_${comp} 1) + endif() + endforeach() + endforeach() + if("${info}" MATCHES "INFO:simulate\\[([^]\"]*)\\]") + set(SIMULATE_ID "${CMAKE_MATCH_1}") + endif() + if("${info}" MATCHES "INFO:simulate_version\\[([^]\"]*)\\]") + string(REGEX REPLACE "^0+([0-9])" "\\1" SIMULATE_VERSION "${CMAKE_MATCH_1}") + string(REGEX REPLACE "\\.0+([0-9])" ".\\1" SIMULATE_VERSION "${SIMULATE_VERSION}") + endif() + if("${info}" MATCHES "INFO:qnxnto\\[\\]") + set(COMPILER_QNXNTO 1) + endif() + endforeach() + + # Construct compiler version from components if needed. + if(NOT DEFINED COMPILER_VERSION AND HAVE_COMPILER_VERSION_MAJOR) + set(COMPILER_VERSION "${COMPILER_VERSION_MAJOR}") + if(HAVE_COMPILER_VERSION_MINOR) + set(COMPILER_VERSION "${COMPILER_VERSION}.${COMPILER_VERSION_MINOR}") + if(HAVE_COMPILER_VERSION_PATCH) + set(COMPILER_VERSION "${COMPILER_VERSION}.${COMPILER_VERSION_PATCH}") + if(HAVE_COMPILER_VERSION_TWEAK) + set(COMPILER_VERSION "${COMPILER_VERSION}.${COMPILER_VERSION_TWEAK}") + endif() + endif() + endif() + endif() + + # Detect the exact architecture from the PE header. + if(WIN32) + # The offset to the PE signature is stored at 0x3c. + file(READ ${file} peoffsethex LIMIT 1 OFFSET 60 HEX) + string(SUBSTRING "${peoffsethex}" 0 1 peoffsethex1) + string(SUBSTRING "${peoffsethex}" 1 1 peoffsethex2) + set(peoffsetexpression "${peoffsethex1} * 16 + ${peoffsethex2}") + string(REPLACE "a" "10" peoffsetexpression "${peoffsetexpression}") + string(REPLACE "b" "11" peoffsetexpression "${peoffsetexpression}") + string(REPLACE "c" "12" peoffsetexpression "${peoffsetexpression}") + string(REPLACE "d" "13" peoffsetexpression "${peoffsetexpression}") + string(REPLACE "e" "14" peoffsetexpression "${peoffsetexpression}") + string(REPLACE "f" "15" peoffsetexpression "${peoffsetexpression}") + math(EXPR peoffset "${peoffsetexpression}") + + file(READ ${file} peheader LIMIT 6 OFFSET ${peoffset} HEX) + if(peheader STREQUAL "50450000a201") + set(ARCHITECTURE_ID "SH3") + elseif(peheader STREQUAL "50450000a301") + set(ARCHITECTURE_ID "SH3DSP") + elseif(peheader STREQUAL "50450000a601") + set(ARCHITECTURE_ID "SH4") + elseif(peheader STREQUAL "50450000a801") + set(ARCHITECTURE_ID "SH5") + endif() + endif() + + # Check if a valid compiler and platform were found. + if(COMPILER_ID AND NOT COMPILER_ID_TWICE) + set(CMAKE_${lang}_COMPILER_ID "${COMPILER_ID}") + set(CMAKE_${lang}_PLATFORM_ID "${PLATFORM_ID}") + set(MSVC_${lang}_ARCHITECTURE_ID "${ARCHITECTURE_ID}") + set(CMAKE_${lang}_COMPILER_VERSION "${COMPILER_VERSION}") + set(CMAKE_${lang}_SIMULATE_ID "${SIMULATE_ID}") + set(CMAKE_${lang}_SIMULATE_VERSION "${SIMULATE_VERSION}") + endif() + + # Check the compiler identification string. + if(CMAKE_${lang}_COMPILER_ID) + # The compiler identification was found. + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log + "The ${lang} compiler identification is ${CMAKE_${lang}_COMPILER_ID}, found in \"" + "${file}\"\n\n") + else() + # The compiler identification could not be found. + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log + "The ${lang} compiler identification could not be found in \"" + "${file}\"\n\n") + endif() + endif() + + # try to figure out the executable format: ELF, COFF, Mach-O + if(NOT CMAKE_EXECUTABLE_FORMAT) + file(READ ${file} CMAKE_EXECUTABLE_MAGIC LIMIT 4 HEX) + + # ELF files start with 0x7f"ELF" + if("${CMAKE_EXECUTABLE_MAGIC}" STREQUAL "7f454c46") + set(CMAKE_EXECUTABLE_FORMAT "ELF" CACHE INTERNAL "Executable file format") + endif() + +# # COFF (.exe) files start with "MZ" +# if("${CMAKE_EXECUTABLE_MAGIC}" MATCHES "4d5a....") +# set(CMAKE_EXECUTABLE_FORMAT "COFF" CACHE STRING "Executable file format") +# endif() +# +# # Mach-O files start with CAFEBABE or FEEDFACE, according to http://radio.weblogs.com/0100490/2003/01/28.html +# if("${CMAKE_EXECUTABLE_MAGIC}" MATCHES "cafebabe") +# set(CMAKE_EXECUTABLE_FORMAT "MACHO" CACHE STRING "Executable file format") +# endif() +# if("${CMAKE_EXECUTABLE_MAGIC}" MATCHES "feedface") +# set(CMAKE_EXECUTABLE_FORMAT "MACHO" CACHE STRING "Executable file format") +# endif() + + endif() + if(NOT DEFINED CMAKE_EXECUTABLE_FORMAT) + set(CMAKE_EXECUTABLE_FORMAT) + endif() + # Return the information extracted. + set(CMAKE_${lang}_COMPILER_ID "${CMAKE_${lang}_COMPILER_ID}" PARENT_SCOPE) + set(CMAKE_${lang}_PLATFORM_ID "${CMAKE_${lang}_PLATFORM_ID}" PARENT_SCOPE) + set(MSVC_${lang}_ARCHITECTURE_ID "${MSVC_${lang}_ARCHITECTURE_ID}" + PARENT_SCOPE) + set(CMAKE_${lang}_COMPILER_VERSION "${CMAKE_${lang}_COMPILER_VERSION}" PARENT_SCOPE) + set(CMAKE_${lang}_SIMULATE_ID "${CMAKE_${lang}_SIMULATE_ID}" PARENT_SCOPE) + set(CMAKE_${lang}_SIMULATE_VERSION "${CMAKE_${lang}_SIMULATE_VERSION}" PARENT_SCOPE) + set(CMAKE_EXECUTABLE_FORMAT "${CMAKE_EXECUTABLE_FORMAT}" PARENT_SCOPE) + set(COMPILER_QNXNTO "${COMPILER_QNXNTO}" PARENT_SCOPE) +endfunction() + +#----------------------------------------------------------------------------- +# Function to query the compiler vendor. +# This uses a table with entries of the form +# list(APPEND CMAKE_${lang}_COMPILER_ID_VENDORS ${vendor}) +# set(CMAKE_${lang}_COMPILER_ID_VENDOR_FLAGS_${vendor} -some-vendor-flag) +# set(CMAKE_${lang}_COMPILER_ID_VENDOR_REGEX_${vendor} "Some Vendor Output") +# We try running the compiler with the flag for each vendor and +# matching its regular expression in the output. +function(CMAKE_DETERMINE_COMPILER_ID_VENDOR lang) + + if(NOT CMAKE_${lang}_COMPILER_ID_DIR) + # We get here when this function is called not from within CMAKE_DETERMINE_COMPILER_ID() + # This is done e.g. for detecting the compiler ID for assemblers. + # Compute the directory in which to run the test and Create a clean working directory. + set(CMAKE_${lang}_COMPILER_ID_DIR ${CMAKE_PLATFORM_INFO_DIR}/CompilerId${lang}) + file(REMOVE_RECURSE ${CMAKE_${lang}_COMPILER_ID_DIR}) + file(MAKE_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}) + endif() + + + foreach(vendor ${CMAKE_${lang}_COMPILER_ID_VENDORS}) + set(flags ${CMAKE_${lang}_COMPILER_ID_VENDOR_FLAGS_${vendor}}) + set(regex ${CMAKE_${lang}_COMPILER_ID_VENDOR_REGEX_${vendor}}) + execute_process( + COMMAND "${CMAKE_${lang}_COMPILER}" + ${CMAKE_${lang}_COMPILER_ID_ARG1} + ${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST} + ${flags} + WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR} + OUTPUT_VARIABLE output ERROR_VARIABLE output + RESULT_VARIABLE result + TIMEOUT 10 + ) + + if("${output}" MATCHES "${regex}") + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log + "Checking whether the ${lang} compiler is ${vendor} using \"${flags}\" " + "matched \"${regex}\":\n${output}") + set(CMAKE_${lang}_COMPILER_ID "${vendor}" PARENT_SCOPE) + break() + else() + if("${result}" MATCHES "timeout") + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log + "Checking whether the ${lang} compiler is ${vendor} using \"${flags}\" " + "terminated after 10 s due to timeout.") + else() + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log + "Checking whether the ${lang} compiler is ${vendor} using \"${flags}\" " + "did not match \"${regex}\":\n${output}") + endif() + endif() + endforeach() +endfunction() |